Avoid Failure, Improve Performance, and Reduce Cost :. Surface Modify Your Geosynthetics with Fluoro-Seal Reactive Gas Treatments.
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Surface Modify Your Geosynthetics with Fluoro-Seal Reactive Gas Treatments
Increase Permeation Resistance
As Well As
But good quality “structural” adhesion is now possible by chemically changing the surface of geomembranes through Fluoro-Seal reactive gas initiated surface modification. The process provides a surface treatment similar to corona, plasma, or flame treatments, while going deeper into the material with a much more effective and long term change of surface chemistry.Surface Modified Geosynthetics Permit High Strength Adhesive Assembly
1) Better installation and repair opportunities in field applications,
2) More reliable methods for bonding dissimilar materials such as concrete, steel, and different polymers
3) New opportunities for improved efficiencies in pre-fabrication assemblies,
4) The option to bond over 100% of contact surface areas (as opposed to edge or spot connections only),
5) Secondary supplemental seaming for liability protection in leak-prone locations as desired, and
6) The bonding and application of beneficial paints and coatings
7) New opportunities for the assembly of geosynthetic composites
Adhesive connection is stronger than tear strength of the geomembrane
Meets most rigorous requirement even for heat seamingTensile Peel Test of 60 mil (1.5 mm) White Surfaced Geomembrane Adhesively Bonded after Fluoro-Seal Surface Modification
With Surface Modification Many Different Geosynthetics Can be Reliably Bonded to Similar and Dissimilar Materials Including Concrete and Steel as Shown Here with Geonet
Once saturated, neoprene gaskets will leak
Silicone seals of battening do not last
Batten Strips and Gasketing Can Also Be ExpensiveThe Batten Strip/Gasket Connections to Concrete in Surface Impoundments Should Not be Expected to Remain Leak Free
Fluoro-Seal Surface Modified HDPE Adhesively Bonded to Concrete was Subjected to Pullout Tests using Large Flathead Bolts Glued to the Bonded Membrane. When Cut Around the Bolt Head with a Circle Saw and Pulled out with a Tensometer, the Specimens Broke in the Concrete not the Adhesive Connection
Samples at 180 F
Excellent Bonding to Concrete Held up through Repeated Thermal Cycling Tests as Well. Expansion/ Contraction Forces are too Low to Relax Bonding.
Fluoro-Seal surface modification enables do-it-yourself routine repairs, and supplemental sealing for liability protection, in addition to hydrocarbon diffusion resistant containment.
Traditional Repair Options for Such Cases Require Hiring Trained and Specialized Technicians with the Right Equipment- Expensive Over the Impoundment Life
Trowel-able Sealants and Adhesives Can be Spread to Bond Entire Surfaces of Geomembrane to Concrete and Other Materials for Longterm Durability and Leakage Interception
Not Only Does Fluoro-Seal Treatment Make Geosynthetics Bond with Epoxy Adhesives, but the Surface Modification Makes Longterm Application of Paints and other Coatings Possible for Decorative or Performance Related Purposes
Adhesive Bonding and Coating Applications are Essentially Unlimited. Any Assembly which Benefits from Structural Adhesion of Thermoplastics - Bonding to Themselves or Other Substrates Should be Considered. Just Let Your Imagination Soar.
Fluoro-Seal Treatment Will also…
Increase Permeation Resistance
*Rowe, K.R. “Geosynthetics and the Minimization of Contaminant Migration through Barrier Systems Beneath Solid Waste”, Keynote Lecture, Proceedings of 6th International Conference on Geosynthetics, Atlanta Georgia, March 1998, pg 27 - 102.
For a typically well-inspected installation, permeation is the governing rate for aquifer contamination. It has been calculated that for different reasonable scenarios of clay adsorption and biodegradability, and typical Municipal Solid Waste landfill source concentrations, toluene (which has a drinking water limit of 24 ppb) would range from approximately 5 to 500 ppb in an aquifer 3 m underneath a 60 mil HDPE geomembrane and 2 ft compacted clay composite liner system (Rowe, pg 64). Clearly, the risk of contaminated groundwater is present in this typical case ! The solution to eliminate such risk is to specify very thick clay layers, or to specify better hydrocarbon barriers.
Rowe, K.R. “Geosynthetics and the Minimization of Contaminant Migration through Barrier Systems Beneath Solid Waste”, Keynote Lecture, Proceedings of 6th International Conference on Geosynthetics, Atlanta Georgia, March 1998, pg 27 - 102.
Acid Runoff in this Trench at a South American Mine, Together with High Altitude Sunlight, has Oxidized and Degraded with Brittle Fracture this HDPE Drainage Ditch Liner . The Geomembrane could have benefited from the extra protection of Surface Modification.
As tested in constant load stress crack testing, ASTM D 5397, Fluoro-Seal surface modification has enabled otherwise poor stress crack resistant resins to perform well.
By Significantly Reducing Hydrocarbon Diffusion, Fluoro-Seal Treatment Can Extend the Time of Migration and Depletion of Geomembrane Antioxidants and Thus Extend the Lifetime of Geomembranes
Improved Assembly, Improved Installation, and More Secure Containment
Best Available Technology has Improved!